Mobile Toilet Bathroom Feces
There are various ways to handle feces in mobile toilet bathrooms, mainly including the following:
Water-flush and Non-water-flush Suction Types: Water-flush mobile public toilets are equipped with a water tank and a sewage tank. The excreta is flushed into the sewage tank through a water-flush device. The non-water-flush type directly receives the excreta in the sewage tank. For both types, the sewage tank has a relatively small capacity, and suction is required in a timely manner when the specified number of users is reached; otherwise, it is prone to overflow.
Recirculating Water-flush Type: This type of mobile toilet is equipped with intermittent aerobic and anaerobic treatment devices. Biological bacteria are added, and biofilm technology is used to accelerate the fermentation and decomposition of fecal sewage. The treated sewage is filtered and recirculated for toilet flushing, significantly saving water resources and reducing the number of suction operations.
Dry Packaging Type: The excreta is received in biodegradable plastic bags, and a new bag is automatically replaced after each use. After use, they are collected and transported to a treatment plant for disposal. There is no need for water flushing at all, saving water resources and facilitating the collection of waste.
Foam Sealing Type: Foam generated by a foaming liquid mixture covers the inside of the toilet bowl, replacing the flushing function. The system only needs to collect hand-washing water to meet the water demand for foaming, maximizing water conservation and eliminating odors.
Microbial Type: The excreta is treated by a solid-liquid separation device. The feces enter a fermentation tank and are mixed with biological bacteria for decomposition into CO₂ and H₂O, with a degradation rate of ≥99%. The urine is comprehensively treated after aeration, evaporation, and decolorization. This method is environmentally friendly and efficient, suitable for high-frequency use scenarios.
Chemical Treatment: Chemical agents are added to decompose the excreta and control odors. The treated excreta is further processed through special equipment or flows into the sewage system. It is suitable for temporary or emergency scenarios, but attention should be paid to the selection of agents and residue issues.
Anaerobic Digestion: Microorganisms are used to decompose the excreta to produce biogas (energy) and fertilizer (for agriculture/horticulture), reducing the volume and delaying the treatment demand. It is suitable for situations where the treatment facilities are away for a long time, such as construction sites in the wild.
Compression and Storage: The volume of the excreta is reduced by compression, and the treatment is delayed. It is usually used in combination with storage equipment. It is suitable for camping or remote areas and requires regular cleaning.
Multi-functional Sewage Outlet: Equipped with a fecal storage tank or a pre-buried septic tank, the feces need to be manually cleaned and centrally treated. Regular maintenance is required to maintain hygiene and is suitable for fixed mobile toilets.
Mechanical Treatment: Special equipment is used for solid-liquid separation, decomposition, and disinfection to reduce environmental impact and ensure hygiene and safety. The technical requirements are relatively high, but the treatment effect is stable.
